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Analog Instrument

Detect Relay

  • ■Suitable for overload protection and abnormal detection of motor.
  • ■Max. 20 signals can be obtained for just 1 signal input.
  • ■Two types of setting are available : Digital type and screw type.

Operation manual

Model

Note: Auxiliary unit 2422 is used together with the main unit 2411 or 2421. It can not be connected to some of AC input models.

Product Name 1ch Main Unit 2ch Main Unit 2ch Auxiliary Alarm Output Unit
Model Configuration
2411 - - - - -
         
2421 - - - - -
         
2422 - - - -
       
①Setting Method
Code 2411 2421 2422
D Digital switch setting
S Screw driver setting
②Setting, Output
Code 2411 2421 2422
1 H Setting, relay contact output HL Setting, relay contact output
2 L Setting, relay contact output HH Setting, relay contact output
3 H Setting, open collector output LL Setting, relay contact output
4 L Setting, open collector output HL Setting, open collector output
5 -------------------- HH Setting, open collector output
6 -------------------- LL Setting, open collector output
③Input Signals
Code 2411 2421 2422
-- DC signal Note:
2422 is the auxiliary unit, so it accepts no input signal and no specification of ③ is required.
02 DC 0 to 100 mV
03 DC 0 to 1 V
04 DC 0 to 5 V
05 DC 0 to 10 V
09 DC 1 to 5 V
00 Other DC voltage input (60 mV≦00 ≦300 V)
22 DC 0 to 100 μA
23 DC 0 to 1 mA
24 DC 0 to 5 mA
25 DC 0 to 10 mA
29 DC 4 to 20 mA
20 Other DC current input (100 μA≦20 ≦1 A)
- AC signal (Effective value rectification type)    
44 AC 0 to 150 V rms    
46 AC 0 to 300 V rms    
40 (100 mV≦40≦300 V)    
53 AC 0 to 1 A rms    
54 AC 0 to 5 A rms    
50 (100 mA≦50≦5 A)    
- AC signal (Rectification type)    
73 AC 0 to 1 A ※Half wave peak detection system    
74 AC 0 to 5 A    
70 (100 mA≦70 ≦5 A)    

※Connection with 2422, 2ch Auxiliary Alarm Output Unit,is not possible.

④Hysteresis
Code Specifications
H0 Less than 0.5 % , standard
H1 approx. 1 %
H2 approx. 2 %
H3 approx. 3 %
H4 approx. 4 %
H5 approx. 5 %
⑤Action Delay
Code Specifications
T0 No delay, standard
T1 approx. 1 s
T2 approx. 2 s
T3 approx. 3 s
T4 approx. 4 s
T5 approx. 5 s
⑥Power Supply Voltage
Code Specifications
A AC 85 to 250 V 50/60 Hz
9 DC 20 to 30 V
C DC 90 to 170 V
Note:
Note: Specifications of ④Hysteresis, ⑤Power
On Delay and ⑥Power Supply Voltage are common for 2411, 2421 and 2422.

Specifications/Model

Specification / Model 2411D/2411S 2421D/2421S 2422D/2422S
D : Digital switch setting
S : Screw driver setting
NRE-65 NRE-65 NRE-152
Dimension (W x H x D mm) excl .Base socket 28.5 × 72 × 115
Input DC current / voltage(Moving coil) -
Process -
AC current / voltage - -
Output Nos. of Alarm 1point - -
2points -
Accuracy Setting (exclude pot.setting) within ± 0.5 % of Max.value
Repeatability within ± 0.1 %
Output Relay
Open collector
Setting style Thumb
Potentiometer
Alarm type (H/L) H or L fixed
Rating Relay 250 V, 0.5 A a.c., 30 V, 2 A d.c.
Open collector 50 V, 100 mA d.c. 
Response
DC input :
less than 100 ms
AC input :
less than 500 ms(r.m.s.), less than 200 ms(average)
Function Hysteresis
Output delay
Power on delay
Operating temperature 0-50°C
Operating humidity 30 - 90%RH (no condensation)
AC power supply 85 – 264 V a.c.
DC power supply 20 – 30 V d.c., 90 – 170 V d.c.
Weight approx. 170 g

●:Standard, ○:Option

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